Combustible composition



Patented Apr. 9, 1929.

STERNER ST. 1. MEEK,

OF PHILADELPHIA, PENNSYLVANIA. i

' COMBUSTIBLE COMPOSITION.

N Drawing.

Application filed January 18, 1926. Serial No. 82,120.

(GRANTED UNDER THE ACT OF MARCH 8, 1883, AS AMENDED APRIL 30, 1928; 370O. G. 757.)

The invention described hei'ein may be manufactured and used by or forthe Government for governmental purposes Without the payment to me ofany royalty 5 thereon.

The subject of this invention is a combus tible composition intendedprimarily for use in tracer projectiles for signalling, illunn nating,or like purposes.

to impart greater-visibility, brilliance and luminosity to thecombustible by using an element or elements which occur in abundance andwhich may replace other elements whose scarcity may assume seriousproportions. I therefore propose to use zinc compounds either alone orin combination with other substances.

The zinc compounds may be used in the form of oxygen carriers, as zincoxide, zine peroxide, zine nitrate, etc., or in the form of a a fuel fordecreasing the rate of burning of the mixture while at the same timeinereasing the brilliance as by using it in the form of zincthicoyanate, zinc acetate, or zinc oxalate; or the zinc may be addedmerely in the form of an inert substance to increase the brilliance, asfor example, zinc chloride, zinc sulphide, etc.

As an example of the use of zinc compounds in the form of oxygencarriers, the following formulae are given:

' Parts. Strontium nitrate 6O Zinc nitrate Sodium oxalate 10 Sodiumnitrate 8 Magnesium 46 Calcium resinate 2 40 Barium nitrate 60 Zincperoxide 50 Barium oxalate 10 Sodium nitrate 8 Magnesium 34;

Aluminum 12 Calcium resinate 30 The principal object of the invention isformula is a typical exama zinc salt as a fuel.

The following ple of the use of Parts. Barium nitrate 15 Barium peroxide12 Calcium resinate 12 Magnesium 20 Zinc thiocyanate 12 Of the use of azinc salt as an'inert substance for increasing the brilliance of the 1.A tracer mixture comprising magnesium, a metal resinate, a zinc compoundand a suitable oxygen carrier.

2. A tracer mixture comprising magnesium, a resinous binder a zinccompoundand g a suitable oxy en carrier.

b 3. A tracer mixture comprising aluminum magnesium, a metal resinate, azinc compound and a suitable oxygen carrier.

4. A tracer comprising aluminum, mag nesium, a binder, a zinc compoundand a suitable oxygen carrier.

5. A tracer composition including a highly combustible metal, a zinccompound and a metallic resinate binder.

STERNER ST. P. MEEK.

